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    In this case it returns the global value, which matches the old behaviour.

1.52 13/06/2009:
- Apply documentation patch to describe IBM APAR issue IZ50240; AIX tar
  does not always end a Tar archive with a 0x00 null block, which can
  cause warnings from Archive::Tar.
  This is a documentation patch only, and users of 1.50 need not upgrade.

1.50 12/06/2009:
- Apply patch in #46450: Support for --no-same-permissions style behavior
  This facilitates leaving the +x bit, while still applying your umask on
  the extracted file.

1.48 20/04/2009:
- Address #44680 (Improve error reporting on short corrupted archives)
  Archives of less than 512 bytes would not have a clear error string set
- Requires at least IO::Compres::* 2.015, to address: #43609: Memory
  problem with A::T. Turns out 2.012 was leaking memory.

1.46 05/03/2009:
- Address: bug #43513: [PATCH] Accept wrong checksums from SunOS and HP-UX tar
  like GNU tar does. See here for details:
  http://www.gnu.org/software/tar/manual/tar.html#SEC139
- make COMPRESS_BZIP and COMPRESS_GZIP constants actually work and fix their
  documentation

1.44 19/01/2009:
- Address #41798: Nonempty $\ when writing a Tar file produces a
  corrupt Tar file
- Textual fix to Makefile.PL diagnostics

1.42 13/12/2008:
- Address #40426: Archive Tar to support direct Archive::Tar::File adds
  It is now possible to add Archive::Tar::File objects via $tar->add_files
- Address #40016 (Archive::Tar assumes $> won't change): CAN_CHOWN is now a
  dynamic check upon extraction. This allows scripts to drop privileges when
  desired
- Address take 2 of #39933: [PATCH] handle ../ directory name on VMS
  John M. sent in a better way to do directory name translation.

1.40 13/10/2008:
- Add $class->has_zlib_support and $class->has_bzip2_support to
  discern which A::T can support
- Address: #39933: [PATCH] handle ../ directory name on VMS (core patch)

1.39_04 08/09/2008:
- Address: #38932: pax_global_header extracted as file
  Don't extract these special files, which are added by, among
  others, git-generated tarballs. It holds a comment and is not
  meant for extraction. This follows gnu tar 1.14 and later behaviour
- Address: #19577: extract_file() drops volume part of extraction path
  Windows users can now extract files to a different volume

* important changes in verison 1.39_03 26/08/2008:
- Because all the IO::Compress modules are interlinked, they must be
  the same version when installed, or breakage will occur like shown
  at this tester report:

    http://www.nntp.perl.org/group/perl.cpan.testers/2008/08/msg2083310.html

  Mailed the author to find a less fragile solution, but for now we require
  all the individual modules, and all at the same version.

1.39_02 25/08/2008:
- Address #31806: Please add support for bzipped tar files.
  Archive::Tar now supports reading/writing tar.bz2 files.
- Since IO::Zlib is now core, it is now a default dependency.
- Added Package::Constants as a dependency to ease the use of A::T::Constants
- Dependency on IO::Compress::Bzip2 and IO::Uncompress::Bunzip2 is on
  by default, but can be negated with the -n switch when building:
  'perl Makefile.PL -n'
- Improve documentation on the new ->iter function

1.39_01 22/08/2008:
- Address the second part mentioned in this report:
  #30380: directory traversal vulnerability in Archive-Tar
  Archives are no longer allowed to extract into symlinked directories,
  unless Insecure Extract Mode is enabled (which is off by default).
- Add regression tests for this behaviour
- Address #33669 (Could not update timestamp warning on symlinks)
  Don't update timestamps on symlinks, they'll modify the original
- Apply core patch: [patch@33971] Archive::Tar was building corrupt
  archives on VMS as supplied by John Malmberg
- Address #37375: ptar should allow '-' as an archive_file name
  Patch provided by glenn jackman
- Add convenience method ->extract() to A::T::File
- improve docs of A::T::File by adding rv & object in the header
- Address #38580: [PATCH] Archive::Tar->iter
  This adds an iterator to Archive::Tar, thanks to Gisle Aas

1.38    14/12/2007:
- Promote 1.37_01 to stable.

1.37_01 11/11/2007:
_ Address #30380: directory traversal vulnerability in Archive-Tar
  - Add $INSECURE_EXTRACT_MODE which defaults to 0, disallowing
    archives to extract files outside of cwd(). This is a backwards
    incompatible change from 1.36 and before.
  - Add a -I option to ptar to enable insecure extraction if needed

1.36 16/9/2007:
-   Portability fixes for VMS, as offered by Craig Berry.

1.34 15/8/2007:
-   Address #28687: Fwd: Unespected reaction of Archive::Tar
    A::T didn't always handle filenames that evaluated to false
    (like '0') gracefully. This patch adds a few 'or defined' check
    to the A::T codebase and a test to ensure filenames like '0' are
    handeled correctly.
-   Apply #28407: Unicode and Archive::Tar - documentation patch as
	FAQ patch

1.32 25/7/2007:
-   Apply #28407: Unicode and Archive::Tar - documentation patch as
    FAQ patch
-   Following a report from rgs that A::T 1.31 doesn't play nicely
    with -Dmksymlinks under perl core, rewrite the symlink logic in
    A::T::File->new to continue building an object when reading a
    symlink fails, rather than refusing to read on a symlink (which
    is obviously wrong)
-   Quell warnings when a gid is not resolvable to a group name